Aboard his gold-plated jumbo jet, the Republican nominee does not like to rest or be alone with his thoughts, insisting that aides stay up and keep talking to him. He prefers the soothing, whispery voice of his son-in-law.

He requires constant assurance that his candidacy is on track.

.. And he is struggling to suppress his bottomless need for attention.

.. Aides to Mr. Trump have finally wrested away the Twitter account that he used to colorfully — and often counterproductively — savage his rivals. But offline, Mr. Trump still privately muses about all of the ways he will punish his enemies after Election Day, including a threat to fund a “super PAC” with vengeance as its core mission.

.. she discouraged the campaign from promoting the ad in news releases, fearing that her high-profile association with the campaign would damage the businesses that bear her name.

.. Advisers cut loose from the campaign months ago, like Corey Lewandowski, still talk to the candidate frequently, offering advice that sometimes clashes with that of the current leadership team.

.. Mr. Trump, who does not use a computer, rails against the campaign’s expenditure of tens of millions on digital ads, skeptical that spots he never sees could have any effect.

.. His aides outlined 15 bullet points for him to deliver during an Oct. 22 speech in Gettysburg, Pa., to focus voters on a new theme of cleaning up government

.. And over the firm objections of his top advisers, he insisted on using the occasion to issue a remarkable threat: that he would sue all of the women who had gone public with the accusations.

.. And over the firm objections of his top advisers, he insisted on using the occasion to issue a remarkable threat: that he would sue all of the women who had gone public with the accusations.

.. The speech was roundly criticized and seemed strikingly out of place on such sacred and historic ground. “The Grievanceburg Address,” one journalist deemed it.

.. Then came an astonishing development. On Oct. 28, the director of the F.B.I., James B. Comey, announced that his agency would review newly discovered emails potentially pertinent to its investigation of Mrs. Clinton’s private server.

.. To the assembled men sitting in white leather seats, the answer was simple: It could turn the election around.

But they insisted that to truly exploit it, Mr. Trump needed to do something he had been incapable of in the past: strictly follow instructions, let a story unfold on its own and resist the urge to endlessly bludgeon his rival.

.. Several advisers warned him that he risked becoming like a wild animal chasing its prey so zealously that it raced over a cliff — a reminder that he could pursue his grievances and his eagerness to fling insults, but that the cost would be a plunge into an electoral abyss.

.. Taking away Twitter turned out to be an essential move by his press team, which deprived him of a previously unfiltered channel for his aggressions.

.. as his plane idled on the tarmac in Miami, Mr. Trump spotted Air Force One outside his window. As he glowered at the larger plane, he told Ms. Hicks, his spokeswoman, to jot down a proposed tweet about President Obama, who was campaigning nearby for Mrs. Clinton.

.. Mr. Bannon, his rumpled campaign chief and a calming presence to the candidate, tried a different approach: appealing to Mr. Trump’s ego and competitive side by suggesting that the Clintons were looking to rattle him.